These socks can accommodate up to XX Wide 6E feet and wide calves. Super stretchy tops for 24" circumference that stay up even as width and swelling changes. Exterior toe seam for less irritation on sensitive feet. Even stays up over casts! Cotton/Nylon/Spandex. Made in the USA. Women’s (Women’s Shoe 6½-9½, Men’s Shoe 5-8), Men’s (Women’s 10-13, Men’s 8½-11½), Men’s Large (Women’s 13½+, Men’s 12-16).